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1978 Porsche 911 Turbo Coupe (930)
Porsche 911 Turbo (930)
1975-1989 (G-Series generation) · sports car
Rarity Score
7/10 - Rare, as production numbers were low and many did not survive unmodified
Spot Difficulty
8/10 - Difficult to spot in normal daily traffic; mostly found at upscale car shows, Porsche club meets, or driven sparingly by collectors on weekends
Engine & Performance
Engine: 3.3L turbocharged flat-6 (air-cooled), producing approximately 265 hp and 291 lb-ft of torque for the US market
Transmission & Drivetrain: 4-speed manual transmission with Rear-Wheel Drive (RWD)
Performance: 0-60 mph in approximately 4.9 seconds, top speed of 160 mph, curb weight around 2,900 lbs, with notable turbo lag and legendary oversteer characteristics
Exterior
Guards White or Grand Prix White exterior finish featuring the iconic widebody whale-tail stance, flared rear wheel arches, black rubber front bumper guards, and classic round headlamps with body-colored rings
Interior Features
Black leather upholstery, classic 5-gauge instrument cluster with central tachometer, sport steering wheel, rudimentary climate controls, and analog driving ergonomics typical of late 1970s German sports cars
Condition Assessment
Very Good. The paint appears glossy and clean, body panels are straight, and trim pieces are intact while resting in a clean indoor facility.
Condition Issues: Minor dust accumulation from indoor storage, potential standard aging of rubber seals and suspension bushings due to age
Estimated Mileage: 40,000 - 60,000 miles based on the well-preserved presentation
Historical Significance
The 930 Turbo brought forced induction from the racetrack to road-going sports cars, defining the supercar era of the late 70s and 80s and cementing the rear-engine layout's performance potential
Notable Features
Aggressive factory widebody styling, iconic whale-tail rear spoiler, and the infamous 'Widowmaker' reputation due to its snap oversteer and brutal turbo lag
Production Numbers
Approximately 18,770 units of the 930 Turbo were built worldwide across its entire 1975-1989 production run, with the 3.3L variant spanning 1978-1989
Valuation
Estimated Market Value: $150,000 - $220,000
Auction Estimate: $160,000 - $250,000
Maintenance Recommendations
Regular valve adjustments, fuel system inspections, monitoring oil lines and turbocharger seals, and checking for rubber degradation
Fun Facts
1. Earned the terrifying nickname 'The Widowmaker' due to its tendency for sudden snap-oversteer when the turbo spooled mid-corner. 2. Featured prominently in movies and pop culture as the ultimate status symbol of the 1980s. 3. Porsche originally intended to build just 400 units to meet homologation requirements, but demand was so high they put it into full production. 4. The whale-tail spoiler was actually designed to provide downforce and feed extra cooling air to the engine bay.
Identified on: 10/12/2026
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